The FLYCOLOR EDF 64 mm unit features a closed rotor design, where the rotor is fully integrated inside the duct tube, eliminating the blade guard and significantly reducing peripheral turbulence compared to exposed blades. The duct body is made of short fiber-reinforced polyamide, which is rigid and lightweight, with tight tolerances relative to the blade tips to maximize the produced static pressure and thrust.

The 3500KV built-in motor is specially selected for EDF applications, offering high RPMs and low rotor inertia. The internal rotor spins on hybrid ceramic bearings with minimal friction, supporting operating speeds over 38,000-42,000 RPM on 4S. The precision multipole wound stator ensures high electrical efficiency and controlled heat generation.

The 50A ESC speed controller that accompanies the unit provides continuous current of 50A, with a temporary peak of 60A, suitable for most typical flights. It is compatible with voltages from 2S to 4S, making it versatile for training models and race setups. The ESC includes electronic protection against overvoltage and overheating.

Each unit undergoes individual balance testing during production, ensuring the rotor's static and dynamic balance. This process is critical for jet-foamie aircraft, where the duct is structurally integrated into the plane, as any imbalance can cause microcracks over time.

The 64 mm duct with a 3500KV motor on 4S is ideal for jet aircraft made of EPO or EPS with a total takeoff weight between 700 g and 1,100 g. It is the preferred setup for scale models such as F-16, Su-27, Habu, L-39 Albatros, and Scorpion. The recommended operation for FPV or fixed-wing drones is at 50-70% throttle, reducing power consumption.